50. Which of the following are the factors of the polynomial
4a2 + 9b2 + 25c2 – 12ab- 30bc + 20ac?
4
(2) (2a - 3b + 50) (2a – 3b + 50)
(1) (2a + 3b + 50) (2a + 3b + 50)
(3) (2a + 3b - 50) (2a + 3b - 50)
(4) (2a - 3b-5c) (2a - 3b - 50)
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Answer:
c
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